This is an electricity graph of my 12k Gree Sapphire first starting up. My Midea units perform the same way. When these units first start up they spend the first minute at their minimum modulation of around 200 watts. They then slowly ramp up to the compressor in staged increments as seen in the graph.
Compared to a fixed single speed compressor that has crazy high starting amps. The low and slow start up of inverters maximizes both lifespan of the compressor and efficiency. Slow and steady wins the race...
This may be typical of all variable speed inverter drive units. The Carrier 25VNA family does soft start, then ramps up to a higher speed to quickly establish working pressures, then ramps down to whatever capacity is needed.
These soft start systems are generator friendly.
Is sampling enough to detect a surge? They tend to be very brief.
My heat pump water heater surge:
https://preview.redd.it/ompjp5q4edxb1.png?width=864&format=pjpg&auto=webp&s=a5bbd735e6fdee38c9a56c94c825a40e4d1c5cab
My Emporia vue charts are much different looking to yours. More detailed but also noises. Strange.
See example of senville (midea) startup. Way more squiggly.
https://preview.redd.it/wm4ujuxnxcxb1.jpeg?width=1768&format=pjpg&auto=webp&s=a051f89d0d489f23795d261b247f3ee29aa16656
Yup! Your compressor seal is never perfect, so you will leak a bit of oil. This isn't really a problem, so long as it makes it's way back to the compressor eventually... but if your compressor spends long times at minimum modulation, that doesn't really happen... there's just not enough flow rate to push the oil back up to the compressor, if your air handler is installed significantly lower than your compressor (say, you have an air handler in a basement!).
Another vote for Emporia. You can look at the app, flip a switch, and say, "Yup, that LED string is 10 watts." Already helped find an offender that I wasn't able to nail down. Solid.
Nice! That's definitely something worth getting then. I looked into the details on their website and like what it has to offer. Not very expensive either for what it does.
Compressor Surge Amperage, You don’t get billed anymore for the whole 1 second of surge time. Do you have a 3 phase Service in your home? With a Commercial Demand meter?
This is an electricity graph of my 12k Gree Sapphire first starting up. My Midea units perform the same way. When these units first start up they spend the first minute at their minimum modulation of around 200 watts. They then slowly ramp up to the compressor in staged increments as seen in the graph. Compared to a fixed single speed compressor that has crazy high starting amps. The low and slow start up of inverters maximizes both lifespan of the compressor and efficiency. Slow and steady wins the race...
This may be typical of all variable speed inverter drive units. The Carrier 25VNA family does soft start, then ramps up to a higher speed to quickly establish working pressures, then ramps down to whatever capacity is needed. These soft start systems are generator friendly.
Is sampling enough to detect a surge? They tend to be very brief. My heat pump water heater surge: https://preview.redd.it/ompjp5q4edxb1.png?width=864&format=pjpg&auto=webp&s=a5bbd735e6fdee38c9a56c94c825a40e4d1c5cab
It is. I can see the surge on motors with capacitors but I have never seen any surge on the inverters.
My Emporia vue charts are much different looking to yours. More detailed but also noises. Strange. See example of senville (midea) startup. Way more squiggly. https://preview.redd.it/wm4ujuxnxcxb1.jpeg?width=1768&format=pjpg&auto=webp&s=a051f89d0d489f23795d261b247f3ee29aa16656
I think this is because op is looking too long after the per second data is flattened to an average for that minute.
Thanks for sharing! My Midea/Bosch IDS units operates similarly
I have seen many graphs of inverter's power usage spiking up every so often, supposedly to distribute compressor oil.
Yup! Your compressor seal is never perfect, so you will leak a bit of oil. This isn't really a problem, so long as it makes it's way back to the compressor eventually... but if your compressor spends long times at minimum modulation, that doesn't really happen... there's just not enough flow rate to push the oil back up to the compressor, if your air handler is installed significantly lower than your compressor (say, you have an air handler in a basement!).
What sensors are y'all using to track the startup and usage? I have a Senville system with 2 outdoor units and 7 indoor units.
Emporia Vue Electricity monitor seems to be the most popular energy monitor.
Nice! I'll check that out. Thank you!
Another vote for Emporia. You can look at the app, flip a switch, and say, "Yup, that LED string is 10 watts." Already helped find an offender that I wasn't able to nail down. Solid.
Nice! That's definitely something worth getting then. I looked into the details on their website and like what it has to offer. Not very expensive either for what it does.
>[myeyedro.com](https://myeyedro.com) sends weekly reports amd you can drill down to get graphs of all possible time periods, including by the hour.
Thank you for the suggestion! I'll take a look at this as well.
but it is not working at the moment...failed to open, it says...
Draught Prevention Control aka Hot-Start
[https://prnt.sc/bRlCOYXbyjcj](https://prnt.sc/bRlCOYXbyjcj) Here's how my Moovair starts. Chart is set to seconds,,,always a slow climb
Compressor Surge Amperage, You don’t get billed anymore for the whole 1 second of surge time. Do you have a 3 phase Service in your home? With a Commercial Demand meter?